Line data Source code
1 : /*------------------------------------------------------------------------
2 : *
3 : * regress.c
4 : * Code for various C-language functions defined as part of the
5 : * regression tests.
6 : *
7 : * This code is released under the terms of the PostgreSQL License.
8 : *
9 : * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
10 : * Portions Copyright (c) 1994, Regents of the University of California
11 : *
12 : * src/test/regress/regress.c
13 : *
14 : *-------------------------------------------------------------------------
15 : */
16 :
17 : #include "postgres.h"
18 :
19 : #include <math.h>
20 : #include <signal.h>
21 :
22 : #include "access/detoast.h"
23 : #include "access/htup_details.h"
24 : #include "catalog/catalog.h"
25 : #include "catalog/namespace.h"
26 : #include "catalog/pg_operator.h"
27 : #include "catalog/pg_type.h"
28 : #include "commands/sequence.h"
29 : #include "commands/trigger.h"
30 : #include "executor/executor.h"
31 : #include "executor/functions.h"
32 : #include "executor/spi.h"
33 : #include "funcapi.h"
34 : #include "mb/pg_wchar.h"
35 : #include "miscadmin.h"
36 : #include "nodes/supportnodes.h"
37 : #include "optimizer/optimizer.h"
38 : #include "optimizer/plancat.h"
39 : #include "parser/parse_coerce.h"
40 : #include "port/atomics.h"
41 : #include "postmaster/postmaster.h" /* for MAX_BACKENDS */
42 : #include "storage/spin.h"
43 : #include "tcop/tcopprot.h"
44 : #include "utils/array.h"
45 : #include "utils/builtins.h"
46 : #include "utils/geo_decls.h"
47 : #include "utils/memutils.h"
48 : #include "utils/rel.h"
49 : #include "utils/typcache.h"
50 :
51 : /* define our text domain for translations */
52 : #undef TEXTDOMAIN
53 : #define TEXTDOMAIN PG_TEXTDOMAIN("postgresql-regress")
54 :
55 : #define EXPECT_TRUE(expr) \
56 : do { \
57 : if (!(expr)) \
58 : elog(ERROR, \
59 : "%s was unexpectedly false in file \"%s\" line %u", \
60 : #expr, __FILE__, __LINE__); \
61 : } while (0)
62 :
63 : #define EXPECT_EQ_U32(result_expr, expected_expr) \
64 : do { \
65 : uint32 actual_result = (result_expr); \
66 : uint32 expected_result = (expected_expr); \
67 : if (actual_result != expected_result) \
68 : elog(ERROR, \
69 : "%s yielded %u, expected %s in file \"%s\" line %u", \
70 : #result_expr, actual_result, #expected_expr, __FILE__, __LINE__); \
71 : } while (0)
72 :
73 : #define EXPECT_EQ_U64(result_expr, expected_expr) \
74 : do { \
75 : uint64 actual_result = (result_expr); \
76 : uint64 expected_result = (expected_expr); \
77 : if (actual_result != expected_result) \
78 : elog(ERROR, \
79 : "%s yielded " UINT64_FORMAT ", expected %s in file \"%s\" line %u", \
80 : #result_expr, actual_result, #expected_expr, __FILE__, __LINE__); \
81 : } while (0)
82 :
83 : #define LDELIM '('
84 : #define RDELIM ')'
85 : #define DELIM ','
86 :
87 : static void regress_lseg_construct(LSEG *lseg, Point *pt1, Point *pt2);
88 :
89 69 : PG_MODULE_MAGIC_EXT(
90 : .name = "regress",
91 : .version = PG_VERSION
92 : );
93 :
94 :
95 : /* return the point where two paths intersect, or NULL if no intersection. */
96 7 : PG_FUNCTION_INFO_V1(interpt_pp);
97 :
98 : Datum
99 2688 : interpt_pp(PG_FUNCTION_ARGS)
100 : {
101 2688 : PATH *p1 = PG_GETARG_PATH_P(0);
102 2688 : PATH *p2 = PG_GETARG_PATH_P(1);
103 : int i,
104 : j;
105 : LSEG seg1,
106 : seg2;
107 : bool found; /* We've found the intersection */
108 :
109 2688 : found = false; /* Haven't found it yet */
110 :
111 8823 : for (i = 0; i < p1->npts - 1 && !found; i++)
112 : {
113 6135 : regress_lseg_construct(&seg1, &p1->p[i], &p1->p[i + 1]);
114 18819 : for (j = 0; j < p2->npts - 1 && !found; j++)
115 : {
116 12684 : regress_lseg_construct(&seg2, &p2->p[j], &p2->p[j + 1]);
117 12684 : if (DatumGetBool(DirectFunctionCall2(lseg_intersect,
118 : LsegPGetDatum(&seg1),
119 : LsegPGetDatum(&seg2))))
120 2682 : found = true;
121 : }
122 : }
123 :
124 2688 : if (!found)
125 6 : PG_RETURN_NULL();
126 :
127 : /*
128 : * Note: DirectFunctionCall2 will kick out an error if lseg_interpt()
129 : * returns NULL, but that should be impossible since we know the two
130 : * segments intersect.
131 : */
132 2682 : PG_RETURN_DATUM(DirectFunctionCall2(lseg_interpt,
133 : LsegPGetDatum(&seg1),
134 : LsegPGetDatum(&seg2)));
135 : }
136 :
137 :
138 : /* like lseg_construct, but assume space already allocated */
139 : static void
140 18819 : regress_lseg_construct(LSEG *lseg, Point *pt1, Point *pt2)
141 : {
142 18819 : lseg->p[0].x = pt1->x;
143 18819 : lseg->p[0].y = pt1->y;
144 18819 : lseg->p[1].x = pt2->x;
145 18819 : lseg->p[1].y = pt2->y;
146 18819 : }
147 :
148 7 : PG_FUNCTION_INFO_V1(overpaid);
149 :
150 : Datum
151 18 : overpaid(PG_FUNCTION_ARGS)
152 : {
153 18 : HeapTupleHeader tuple = PG_GETARG_HEAPTUPLEHEADER(0);
154 : bool isnull;
155 : int32 salary;
156 :
157 18 : salary = DatumGetInt32(GetAttributeByName(tuple, "salary", &isnull));
158 18 : if (isnull)
159 0 : PG_RETURN_NULL();
160 18 : PG_RETURN_BOOL(salary > 699);
161 : }
162 :
163 : /* New type "widget"
164 : * This used to be "circle", but I added circle to builtins,
165 : * so needed to make sure the names do not collide. - tgl 97/04/21
166 : */
167 :
168 : typedef struct
169 : {
170 : Point center;
171 : double radius;
172 : } WIDGET;
173 :
174 10 : PG_FUNCTION_INFO_V1(widget_in);
175 7 : PG_FUNCTION_INFO_V1(widget_out);
176 :
177 : #define NARGS 3
178 :
179 : Datum
180 33 : widget_in(PG_FUNCTION_ARGS)
181 : {
182 33 : char *str = PG_GETARG_CSTRING(0);
183 : char *p,
184 : *coord[NARGS];
185 : int i;
186 : WIDGET *result;
187 :
188 189 : for (i = 0, p = str; *p && i < NARGS && *p != RDELIM; p++)
189 : {
190 156 : if (*p == DELIM || (*p == LDELIM && i == 0))
191 81 : coord[i++] = p + 1;
192 : }
193 :
194 : /*
195 : * Note: DON'T convert this error to "soft" style (errsave/ereturn). We
196 : * want this data type to stay permanently in the hard-error world so that
197 : * it can be used for testing that such cases still work reasonably.
198 : */
199 33 : if (i < NARGS)
200 12 : ereport(ERROR,
201 : (errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
202 : errmsg("invalid input syntax for type %s: \"%s\"",
203 : "widget", str)));
204 :
205 21 : result = palloc_object(WIDGET);
206 21 : result->center.x = atof(coord[0]);
207 21 : result->center.y = atof(coord[1]);
208 21 : result->radius = atof(coord[2]);
209 :
210 21 : PG_RETURN_POINTER(result);
211 : }
212 :
213 : Datum
214 6 : widget_out(PG_FUNCTION_ARGS)
215 : {
216 6 : WIDGET *widget = (WIDGET *) PG_GETARG_POINTER(0);
217 6 : char *str = psprintf("(%g,%g,%g)",
218 : widget->center.x, widget->center.y, widget->radius);
219 :
220 6 : PG_RETURN_CSTRING(str);
221 : }
222 :
223 7 : PG_FUNCTION_INFO_V1(pt_in_widget);
224 :
225 : Datum
226 6 : pt_in_widget(PG_FUNCTION_ARGS)
227 : {
228 6 : Point *point = PG_GETARG_POINT_P(0);
229 6 : WIDGET *widget = (WIDGET *) PG_GETARG_POINTER(1);
230 : float8 distance;
231 :
232 6 : distance = DatumGetFloat8(DirectFunctionCall2(point_distance,
233 : PointPGetDatum(point),
234 : PointPGetDatum(&widget->center)));
235 :
236 6 : PG_RETURN_BOOL(distance < widget->radius);
237 : }
238 :
239 7 : PG_FUNCTION_INFO_V1(reverse_name);
240 :
241 : Datum
242 24 : reverse_name(PG_FUNCTION_ARGS)
243 : {
244 24 : char *string = PG_GETARG_CSTRING(0);
245 : int i;
246 : int len;
247 : char *new_string;
248 :
249 24 : new_string = palloc0(NAMEDATALEN);
250 168 : for (i = 0; i < NAMEDATALEN && string[i]; ++i)
251 : ;
252 24 : if (i == NAMEDATALEN || !string[i])
253 24 : --i;
254 24 : len = i;
255 168 : for (; i >= 0; --i)
256 144 : new_string[len - i] = string[i];
257 24 : PG_RETURN_CSTRING(new_string);
258 : }
259 :
260 7 : PG_FUNCTION_INFO_V1(trigger_return_old);
261 :
262 : Datum
263 45 : trigger_return_old(PG_FUNCTION_ARGS)
264 : {
265 45 : TriggerData *trigdata = (TriggerData *) fcinfo->context;
266 : HeapTuple tuple;
267 :
268 45 : if (!CALLED_AS_TRIGGER(fcinfo))
269 0 : elog(ERROR, "trigger_return_old: not fired by trigger manager");
270 :
271 45 : tuple = trigdata->tg_trigtuple;
272 :
273 45 : return PointerGetDatum(tuple);
274 : }
275 :
276 :
277 : /*
278 : * Type int44 has no real-world use, but the regression tests use it
279 : * (under the alias "city_budget"). It's a four-element vector of int4's.
280 : */
281 :
282 : /*
283 : * int44in - converts "num, num, ..." to internal form
284 : *
285 : * Note: Fills any missing positions with zeroes.
286 : */
287 7 : PG_FUNCTION_INFO_V1(int44in);
288 :
289 : Datum
290 6 : int44in(PG_FUNCTION_ARGS)
291 : {
292 6 : char *input_string = PG_GETARG_CSTRING(0);
293 6 : int32 *result = (int32 *) palloc(4 * sizeof(int32));
294 : int i;
295 :
296 6 : i = sscanf(input_string,
297 : "%d, %d, %d, %d",
298 : &result[0],
299 : &result[1],
300 : &result[2],
301 : &result[3]);
302 9 : while (i < 4)
303 3 : result[i++] = 0;
304 :
305 6 : PG_RETURN_POINTER(result);
306 : }
307 :
308 : /*
309 : * int44out - converts internal form to "num, num, ..."
310 : */
311 11 : PG_FUNCTION_INFO_V1(int44out);
312 :
313 : Datum
314 14 : int44out(PG_FUNCTION_ARGS)
315 : {
316 14 : int32 *an_array = (int32 *) PG_GETARG_POINTER(0);
317 14 : char *result = (char *) palloc(16 * 4);
318 :
319 14 : snprintf(result, 16 * 4, "%d,%d,%d,%d",
320 : an_array[0],
321 14 : an_array[1],
322 14 : an_array[2],
323 14 : an_array[3]);
324 :
325 14 : PG_RETURN_CSTRING(result);
326 : }
327 :
328 7 : PG_FUNCTION_INFO_V1(test_canonicalize_path);
329 : Datum
330 66 : test_canonicalize_path(PG_FUNCTION_ARGS)
331 : {
332 66 : char *path = text_to_cstring(PG_GETARG_TEXT_PP(0));
333 :
334 66 : canonicalize_path(path);
335 66 : PG_RETURN_TEXT_P(cstring_to_text(path));
336 : }
337 :
338 7 : PG_FUNCTION_INFO_V1(make_tuple_indirect);
339 : Datum
340 63 : make_tuple_indirect(PG_FUNCTION_ARGS)
341 : {
342 63 : HeapTupleHeader rec = PG_GETARG_HEAPTUPLEHEADER(0);
343 : HeapTupleData tuple;
344 : int ncolumns;
345 : Datum *values;
346 : bool *nulls;
347 :
348 : Oid tupType;
349 : int32 tupTypmod;
350 : TupleDesc tupdesc;
351 :
352 : HeapTuple newtup;
353 :
354 : int i;
355 :
356 : MemoryContext old_context;
357 :
358 : /* Extract type info from the tuple itself */
359 63 : tupType = HeapTupleHeaderGetTypeId(rec);
360 63 : tupTypmod = HeapTupleHeaderGetTypMod(rec);
361 63 : tupdesc = lookup_rowtype_tupdesc(tupType, tupTypmod);
362 63 : ncolumns = tupdesc->natts;
363 :
364 : /* Build a temporary HeapTuple control structure */
365 63 : tuple.t_len = HeapTupleHeaderGetDatumLength(rec);
366 63 : ItemPointerSetInvalid(&(tuple.t_self));
367 63 : tuple.t_tableOid = InvalidOid;
368 63 : tuple.t_data = rec;
369 :
370 63 : values = (Datum *) palloc(ncolumns * sizeof(Datum));
371 63 : nulls = (bool *) palloc(ncolumns * sizeof(bool));
372 :
373 63 : heap_deform_tuple(&tuple, tupdesc, values, nulls);
374 :
375 63 : old_context = MemoryContextSwitchTo(TopTransactionContext);
376 :
377 315 : for (i = 0; i < ncolumns; i++)
378 : {
379 : varlena *attr;
380 : varlena *new_attr;
381 : varatt_indirect redirect_pointer;
382 :
383 : /* only work on existing, not-null varlenas */
384 252 : if (TupleDescAttr(tupdesc, i)->attisdropped ||
385 252 : nulls[i] ||
386 219 : TupleDescAttr(tupdesc, i)->attlen != -1 ||
387 156 : TupleDescAttr(tupdesc, i)->attstorage == TYPSTORAGE_PLAIN)
388 96 : continue;
389 :
390 156 : attr = (varlena *) DatumGetPointer(values[i]);
391 :
392 : /* don't recursively indirect */
393 156 : if (VARATT_IS_EXTERNAL_INDIRECT(attr))
394 0 : continue;
395 :
396 : /* copy datum, so it still lives later */
397 156 : if (VARATT_IS_EXTERNAL_ONDISK(attr))
398 0 : attr = detoast_external_attr(attr);
399 : else
400 : {
401 156 : varlena *oldattr = attr;
402 :
403 156 : attr = palloc0(VARSIZE_ANY(oldattr));
404 156 : memcpy(attr, oldattr, VARSIZE_ANY(oldattr));
405 : }
406 :
407 : /* build indirection Datum */
408 156 : new_attr = (varlena *) palloc0(INDIRECT_POINTER_SIZE);
409 156 : redirect_pointer.pointer = attr;
410 156 : SET_VARTAG_EXTERNAL(new_attr, VARTAG_INDIRECT);
411 156 : memcpy(VARDATA_EXTERNAL(new_attr), &redirect_pointer,
412 : sizeof(redirect_pointer));
413 :
414 156 : values[i] = PointerGetDatum(new_attr);
415 : }
416 :
417 63 : newtup = heap_form_tuple(tupdesc, values, nulls);
418 63 : pfree(values);
419 63 : pfree(nulls);
420 63 : ReleaseTupleDesc(tupdesc);
421 :
422 63 : MemoryContextSwitchTo(old_context);
423 :
424 : /*
425 : * We intentionally don't use PG_RETURN_HEAPTUPLEHEADER here, because that
426 : * would cause the indirect toast pointers to be flattened out of the
427 : * tuple immediately, rendering subsequent testing irrelevant. So just
428 : * return the HeapTupleHeader pointer as-is. This violates the general
429 : * rule that composite Datums shouldn't contain toast pointers, but so
430 : * long as the regression test scripts don't insert the result of this
431 : * function into a container type (record, array, etc) it should be OK.
432 : */
433 63 : PG_RETURN_POINTER(newtup->t_data);
434 : }
435 :
436 2 : PG_FUNCTION_INFO_V1(get_environ);
437 :
438 : Datum
439 1 : get_environ(PG_FUNCTION_ARGS)
440 : {
441 : #if !defined(WIN32)
442 : extern char **environ;
443 : #endif
444 1 : int nvals = 0;
445 : ArrayType *result;
446 : Datum *env;
447 :
448 35 : for (char **s = environ; *s; s++)
449 34 : nvals++;
450 :
451 1 : env = palloc(nvals * sizeof(Datum));
452 :
453 35 : for (int i = 0; i < nvals; i++)
454 34 : env[i] = CStringGetTextDatum(environ[i]);
455 :
456 1 : result = construct_array_builtin(env, nvals, TEXTOID);
457 :
458 1 : PG_RETURN_POINTER(result);
459 : }
460 :
461 2 : PG_FUNCTION_INFO_V1(regress_setenv);
462 :
463 : Datum
464 1 : regress_setenv(PG_FUNCTION_ARGS)
465 : {
466 1 : char *envvar = text_to_cstring(PG_GETARG_TEXT_PP(0));
467 1 : char *envval = text_to_cstring(PG_GETARG_TEXT_PP(1));
468 :
469 1 : if (!superuser())
470 0 : elog(ERROR, "must be superuser to change environment variables");
471 :
472 1 : if (setenv(envvar, envval, 1) != 0)
473 0 : elog(ERROR, "could not set environment variable: %m");
474 :
475 1 : PG_RETURN_VOID();
476 : }
477 :
478 : /* Sleep until no process has a given PID. */
479 5 : PG_FUNCTION_INFO_V1(wait_pid);
480 :
481 : Datum
482 2 : wait_pid(PG_FUNCTION_ARGS)
483 : {
484 2 : int pid = PG_GETARG_INT32(0);
485 :
486 2 : if (!superuser())
487 0 : elog(ERROR, "must be superuser to check PID liveness");
488 :
489 7 : while (kill(pid, 0) == 0)
490 : {
491 5 : CHECK_FOR_INTERRUPTS();
492 5 : pg_usleep(50000);
493 : }
494 :
495 2 : if (errno != ESRCH)
496 0 : elog(ERROR, "could not check PID %d liveness: %m", pid);
497 :
498 2 : PG_RETURN_VOID();
499 : }
500 :
501 : static void
502 3 : test_atomic_flag(void)
503 : {
504 : pg_atomic_flag flag;
505 :
506 3 : pg_atomic_init_flag(&flag);
507 3 : EXPECT_TRUE(pg_atomic_unlocked_test_flag(&flag));
508 3 : EXPECT_TRUE(pg_atomic_test_set_flag(&flag));
509 3 : EXPECT_TRUE(!pg_atomic_unlocked_test_flag(&flag));
510 3 : EXPECT_TRUE(!pg_atomic_test_set_flag(&flag));
511 3 : pg_atomic_clear_flag(&flag);
512 3 : EXPECT_TRUE(pg_atomic_unlocked_test_flag(&flag));
513 3 : EXPECT_TRUE(pg_atomic_test_set_flag(&flag));
514 3 : pg_atomic_clear_flag(&flag);
515 3 : }
516 :
517 : static void
518 3 : test_atomic_uint32(void)
519 : {
520 : pg_atomic_uint32 var;
521 : uint32 expected;
522 : int i;
523 :
524 3 : pg_atomic_init_u32(&var, 0);
525 3 : EXPECT_EQ_U32(pg_atomic_read_u32(&var), 0);
526 3 : pg_atomic_write_u32(&var, 3);
527 3 : EXPECT_EQ_U32(pg_atomic_read_u32(&var), 3);
528 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, pg_atomic_read_u32(&var) - 2),
529 : 3);
530 3 : EXPECT_EQ_U32(pg_atomic_fetch_sub_u32(&var, 1), 4);
531 3 : EXPECT_EQ_U32(pg_atomic_sub_fetch_u32(&var, 3), 0);
532 3 : EXPECT_EQ_U32(pg_atomic_add_fetch_u32(&var, 10), 10);
533 3 : EXPECT_EQ_U32(pg_atomic_exchange_u32(&var, 5), 10);
534 3 : EXPECT_EQ_U32(pg_atomic_exchange_u32(&var, 0), 5);
535 :
536 : /* test around numerical limits */
537 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, INT_MAX), 0);
538 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, INT_MAX), INT_MAX);
539 3 : pg_atomic_fetch_add_u32(&var, 2); /* wrap to 0 */
540 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, PG_INT16_MAX), 0);
541 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, PG_INT16_MAX + 1),
542 : PG_INT16_MAX);
543 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, PG_INT16_MIN),
544 : 2 * PG_INT16_MAX + 1);
545 3 : EXPECT_EQ_U32(pg_atomic_fetch_add_u32(&var, PG_INT16_MIN - 1),
546 : PG_INT16_MAX);
547 3 : pg_atomic_fetch_add_u32(&var, 1); /* top up to UINT_MAX */
548 3 : EXPECT_EQ_U32(pg_atomic_read_u32(&var), UINT_MAX);
549 3 : EXPECT_EQ_U32(pg_atomic_fetch_sub_u32(&var, INT_MAX), UINT_MAX);
550 3 : EXPECT_EQ_U32(pg_atomic_read_u32(&var), (uint32) INT_MAX + 1);
551 3 : EXPECT_EQ_U32(pg_atomic_sub_fetch_u32(&var, INT_MAX), 1);
552 3 : pg_atomic_sub_fetch_u32(&var, 1);
553 3 : expected = PG_INT16_MAX;
554 3 : EXPECT_TRUE(!pg_atomic_compare_exchange_u32(&var, &expected, 1));
555 3 : expected = PG_INT16_MAX + 1;
556 3 : EXPECT_TRUE(!pg_atomic_compare_exchange_u32(&var, &expected, 1));
557 3 : expected = PG_INT16_MIN;
558 3 : EXPECT_TRUE(!pg_atomic_compare_exchange_u32(&var, &expected, 1));
559 3 : expected = PG_INT16_MIN - 1;
560 3 : EXPECT_TRUE(!pg_atomic_compare_exchange_u32(&var, &expected, 1));
561 :
562 : /* fail exchange because of old expected */
563 3 : expected = 10;
564 3 : EXPECT_TRUE(!pg_atomic_compare_exchange_u32(&var, &expected, 1));
565 :
566 : /* CAS is allowed to fail due to interrupts, try a couple of times */
567 6 : for (i = 0; i < 1000; i++)
568 : {
569 6 : expected = 0;
570 6 : if (!pg_atomic_compare_exchange_u32(&var, &expected, 1))
571 3 : break;
572 : }
573 3 : if (i == 1000)
574 0 : elog(ERROR, "atomic_compare_exchange_u32() never succeeded");
575 3 : EXPECT_EQ_U32(pg_atomic_read_u32(&var), 1);
576 3 : pg_atomic_write_u32(&var, 0);
577 :
578 : /* try setting flagbits */
579 3 : EXPECT_TRUE(!(pg_atomic_fetch_or_u32(&var, 1) & 1));
580 3 : EXPECT_TRUE(pg_atomic_fetch_or_u32(&var, 2) & 1);
581 3 : EXPECT_EQ_U32(pg_atomic_read_u32(&var), 3);
582 : /* try clearing flagbits */
583 3 : EXPECT_EQ_U32(pg_atomic_fetch_and_u32(&var, ~2) & 3, 3);
584 3 : EXPECT_EQ_U32(pg_atomic_fetch_and_u32(&var, ~1), 1);
585 : /* no bits set anymore */
586 3 : EXPECT_EQ_U32(pg_atomic_fetch_and_u32(&var, ~0), 0);
587 3 : }
588 :
589 : static void
590 3 : test_atomic_uint64(void)
591 : {
592 : pg_atomic_uint64 var;
593 : uint64 expected;
594 : int i;
595 :
596 3 : pg_atomic_init_u64(&var, 0);
597 3 : EXPECT_EQ_U64(pg_atomic_read_u64(&var), 0);
598 3 : pg_atomic_write_u64(&var, 3);
599 3 : EXPECT_EQ_U64(pg_atomic_read_u64(&var), 3);
600 3 : EXPECT_EQ_U64(pg_atomic_fetch_add_u64(&var, pg_atomic_read_u64(&var) - 2),
601 : 3);
602 3 : EXPECT_EQ_U64(pg_atomic_fetch_sub_u64(&var, 1), 4);
603 3 : EXPECT_EQ_U64(pg_atomic_sub_fetch_u64(&var, 3), 0);
604 3 : EXPECT_EQ_U64(pg_atomic_add_fetch_u64(&var, 10), 10);
605 3 : EXPECT_EQ_U64(pg_atomic_exchange_u64(&var, 5), 10);
606 3 : EXPECT_EQ_U64(pg_atomic_exchange_u64(&var, 0), 5);
607 :
608 : /* fail exchange because of old expected */
609 3 : expected = 10;
610 3 : EXPECT_TRUE(!pg_atomic_compare_exchange_u64(&var, &expected, 1));
611 :
612 : /* CAS is allowed to fail due to interrupts, try a couple of times */
613 6 : for (i = 0; i < 100; i++)
614 : {
615 6 : expected = 0;
616 6 : if (!pg_atomic_compare_exchange_u64(&var, &expected, 1))
617 3 : break;
618 : }
619 3 : if (i == 100)
620 0 : elog(ERROR, "atomic_compare_exchange_u64() never succeeded");
621 3 : EXPECT_EQ_U64(pg_atomic_read_u64(&var), 1);
622 :
623 3 : pg_atomic_write_u64(&var, 0);
624 :
625 : /* try setting flagbits */
626 3 : EXPECT_TRUE(!(pg_atomic_fetch_or_u64(&var, 1) & 1));
627 3 : EXPECT_TRUE(pg_atomic_fetch_or_u64(&var, 2) & 1);
628 3 : EXPECT_EQ_U64(pg_atomic_read_u64(&var), 3);
629 : /* try clearing flagbits */
630 3 : EXPECT_EQ_U64((pg_atomic_fetch_and_u64(&var, ~2) & 3), 3);
631 3 : EXPECT_EQ_U64(pg_atomic_fetch_and_u64(&var, ~1), 1);
632 : /* no bits set anymore */
633 3 : EXPECT_EQ_U64(pg_atomic_fetch_and_u64(&var, ~0), 0);
634 3 : }
635 :
636 : /*
637 : * Perform, fairly minimal, testing of the spinlock implementation.
638 : *
639 : * It's likely worth expanding these to actually test concurrency etc, but
640 : * having some regularly run tests is better than none.
641 : */
642 : static void
643 3 : test_spinlock(void)
644 : {
645 : /*
646 : * Basic tests for spinlocks, as well as the underlying operations.
647 : *
648 : * We embed the spinlock in a struct with other members to test that the
649 : * spinlock operations don't perform too wide writes.
650 : */
651 : {
652 : struct test_lock_struct
653 : {
654 : char data_before[4];
655 : slock_t lock;
656 : char data_after[4];
657 : } struct_w_lock;
658 :
659 3 : memcpy(struct_w_lock.data_before, "abcd", 4);
660 3 : memcpy(struct_w_lock.data_after, "ef12", 4);
661 :
662 : /* test basic operations via the SpinLock* API */
663 3 : SpinLockInit(&struct_w_lock.lock);
664 3 : SpinLockAcquire(&struct_w_lock.lock);
665 3 : SpinLockRelease(&struct_w_lock.lock);
666 :
667 : /* test basic operations via underlying S_* API */
668 3 : S_INIT_LOCK(&struct_w_lock.lock);
669 3 : S_LOCK(&struct_w_lock.lock);
670 3 : S_UNLOCK(&struct_w_lock.lock);
671 :
672 : /* and that "contended" acquisition works */
673 3 : s_lock(&struct_w_lock.lock, "testfile", 17, "testfunc");
674 3 : S_UNLOCK(&struct_w_lock.lock);
675 :
676 : /*
677 : * Check, using TAS directly, that a single spin cycle doesn't block
678 : * when acquiring an already acquired lock.
679 : */
680 : #ifdef TAS
681 3 : S_LOCK(&struct_w_lock.lock);
682 :
683 3 : if (!TAS(&struct_w_lock.lock))
684 0 : elog(ERROR, "acquired already held spinlock");
685 :
686 : #ifdef TAS_SPIN
687 3 : if (!TAS_SPIN(&struct_w_lock.lock))
688 0 : elog(ERROR, "acquired already held spinlock");
689 : #endif /* defined(TAS_SPIN) */
690 :
691 3 : S_UNLOCK(&struct_w_lock.lock);
692 : #endif /* defined(TAS) */
693 :
694 : /*
695 : * Verify that after all of this the non-lock contents are still
696 : * correct.
697 : */
698 3 : if (memcmp(struct_w_lock.data_before, "abcd", 4) != 0)
699 0 : elog(ERROR, "padding before spinlock modified");
700 3 : if (memcmp(struct_w_lock.data_after, "ef12", 4) != 0)
701 0 : elog(ERROR, "padding after spinlock modified");
702 : }
703 3 : }
704 :
705 7 : PG_FUNCTION_INFO_V1(test_atomic_ops);
706 : Datum
707 3 : test_atomic_ops(PG_FUNCTION_ARGS)
708 : {
709 3 : test_atomic_flag();
710 :
711 3 : test_atomic_uint32();
712 :
713 3 : test_atomic_uint64();
714 :
715 : /*
716 : * Arguably this shouldn't be tested as part of this function, but it's
717 : * closely enough related that that seems ok for now.
718 : */
719 3 : test_spinlock();
720 :
721 3 : PG_RETURN_BOOL(true);
722 : }
723 :
724 4 : PG_FUNCTION_INFO_V1(test_fdw_handler);
725 : Datum
726 0 : test_fdw_handler(PG_FUNCTION_ARGS)
727 : {
728 0 : elog(ERROR, "test_fdw_handler is not implemented");
729 : PG_RETURN_NULL();
730 : }
731 :
732 7 : PG_FUNCTION_INFO_V1(is_catalog_text_unique_index_oid);
733 : Datum
734 621 : is_catalog_text_unique_index_oid(PG_FUNCTION_ARGS)
735 : {
736 621 : return BoolGetDatum(IsCatalogTextUniqueIndexOid(PG_GETARG_OID(0)));
737 : }
738 :
739 7 : PG_FUNCTION_INFO_V1(test_support_func);
740 : Datum
741 36 : test_support_func(PG_FUNCTION_ARGS)
742 : {
743 36 : Node *rawreq = (Node *) PG_GETARG_POINTER(0);
744 36 : Node *ret = NULL;
745 :
746 36 : if (IsA(rawreq, SupportRequestSelectivity))
747 : {
748 : /*
749 : * Assume that the target is int4eq; that's safe as long as we don't
750 : * attach this to any other boolean-returning function.
751 : */
752 3 : SupportRequestSelectivity *req = (SupportRequestSelectivity *) rawreq;
753 : Selectivity s1;
754 :
755 3 : if (req->is_join)
756 0 : s1 = join_selectivity(req->root, Int4EqualOperator,
757 : req->args,
758 : req->inputcollid,
759 : req->jointype,
760 : req->sjinfo);
761 : else
762 3 : s1 = restriction_selectivity(req->root, Int4EqualOperator,
763 : req->args,
764 : req->inputcollid,
765 : req->varRelid);
766 :
767 3 : req->selectivity = s1;
768 3 : ret = (Node *) req;
769 : }
770 :
771 36 : if (IsA(rawreq, SupportRequestCost))
772 : {
773 : /* Provide some generic estimate */
774 9 : SupportRequestCost *req = (SupportRequestCost *) rawreq;
775 :
776 9 : req->startup = 0;
777 9 : req->per_tuple = 2 * cpu_operator_cost;
778 9 : ret = (Node *) req;
779 : }
780 :
781 36 : if (IsA(rawreq, SupportRequestRows))
782 : {
783 : /*
784 : * Assume that the target is generate_series_int4; that's safe as long
785 : * as we don't attach this to any other set-returning function.
786 : */
787 6 : SupportRequestRows *req = (SupportRequestRows *) rawreq;
788 :
789 6 : if (req->node && IsA(req->node, FuncExpr)) /* be paranoid */
790 : {
791 6 : List *args = ((FuncExpr *) req->node)->args;
792 6 : Node *arg1 = linitial(args);
793 6 : Node *arg2 = lsecond(args);
794 :
795 6 : if (IsA(arg1, Const) &&
796 6 : !((Const *) arg1)->constisnull &&
797 6 : IsA(arg2, Const) &&
798 6 : !((Const *) arg2)->constisnull)
799 : {
800 6 : int32 val1 = DatumGetInt32(((Const *) arg1)->constvalue);
801 6 : int32 val2 = DatumGetInt32(((Const *) arg2)->constvalue);
802 :
803 6 : req->rows = val2 - val1 + 1;
804 6 : ret = (Node *) req;
805 : }
806 : }
807 : }
808 :
809 36 : PG_RETURN_POINTER(ret);
810 : }
811 :
812 7 : PG_FUNCTION_INFO_V1(test_inline_in_from_support_func);
813 : Datum
814 24 : test_inline_in_from_support_func(PG_FUNCTION_ARGS)
815 : {
816 24 : Node *rawreq = (Node *) PG_GETARG_POINTER(0);
817 :
818 24 : if (IsA(rawreq, SupportRequestInlineInFrom))
819 : {
820 : /*
821 : * Assume that the target is foo_from_bar; that's safe as long as we
822 : * don't attach this to any other function.
823 : */
824 12 : SupportRequestInlineInFrom *req = (SupportRequestInlineInFrom *) rawreq;
825 : StringInfoData sql;
826 12 : RangeTblFunction *rtfunc = req->rtfunc;
827 12 : FuncExpr *expr = (FuncExpr *) rtfunc->funcexpr;
828 : Node *node;
829 : Const *c;
830 : char *colname;
831 : char *tablename;
832 : SQLFunctionParseInfoPtr pinfo;
833 : List *raw_parsetree_list;
834 : List *querytree_list;
835 : Query *querytree;
836 :
837 12 : if (list_length(expr->args) != 3)
838 : {
839 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func called with %d args but expected 3", list_length(expr->args))));
840 0 : PG_RETURN_POINTER(NULL);
841 : }
842 :
843 : /* Get colname */
844 12 : node = linitial(expr->args);
845 12 : if (!IsA(node, Const))
846 : {
847 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func called with non-Const parameters")));
848 0 : PG_RETURN_POINTER(NULL);
849 : }
850 :
851 12 : c = (Const *) node;
852 12 : if (c->consttype != TEXTOID || c->constisnull)
853 : {
854 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func called with non-TEXT parameters")));
855 0 : PG_RETURN_POINTER(NULL);
856 : }
857 12 : colname = TextDatumGetCString(c->constvalue);
858 :
859 : /* Get tablename */
860 12 : node = lsecond(expr->args);
861 12 : if (!IsA(node, Const))
862 : {
863 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func called with non-Const parameters")));
864 0 : PG_RETURN_POINTER(NULL);
865 : }
866 :
867 12 : c = (Const *) node;
868 12 : if (c->consttype != TEXTOID || c->constisnull)
869 : {
870 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func called with non-TEXT parameters")));
871 0 : PG_RETURN_POINTER(NULL);
872 : }
873 12 : tablename = TextDatumGetCString(c->constvalue);
874 :
875 : /* Begin constructing replacement SELECT query. */
876 12 : initStringInfo(&sql);
877 12 : appendStringInfo(&sql, "SELECT %s::text FROM %s",
878 : quote_identifier(colname),
879 : quote_identifier(tablename));
880 :
881 : /* Add filter expression if present. */
882 12 : node = lthird(expr->args);
883 12 : if (!(IsA(node, Const) && ((Const *) node)->constisnull))
884 : {
885 : /*
886 : * We only filter if $3 is not constant-NULL. This is not a very
887 : * exact implementation of the PL/pgSQL original, but it's close
888 : * enough for demonstration purposes.
889 : */
890 6 : appendStringInfo(&sql, " WHERE %s::text = $3",
891 : quote_identifier(colname));
892 : }
893 :
894 : /* Build a SQLFunctionParseInfo with the parameters of my function. */
895 12 : pinfo = prepare_sql_fn_parse_info(req->proc,
896 : (Node *) expr,
897 : expr->inputcollid);
898 :
899 : /* Parse the generated SQL. */
900 12 : raw_parsetree_list = pg_parse_query(sql.data);
901 12 : if (list_length(raw_parsetree_list) != 1)
902 : {
903 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func parsed to more than one node")));
904 0 : PG_RETURN_POINTER(NULL);
905 : }
906 :
907 : /* Analyze the parse tree as if it were a SQL-language body. */
908 12 : querytree_list = pg_analyze_and_rewrite_withcb(linitial(raw_parsetree_list),
909 12 : sql.data,
910 : (ParserSetupHook) sql_fn_parser_setup,
911 : pinfo, NULL);
912 12 : if (list_length(querytree_list) != 1)
913 : {
914 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func rewrote to more than one node")));
915 0 : PG_RETURN_POINTER(NULL);
916 : }
917 :
918 12 : querytree = linitial(querytree_list);
919 12 : if (!IsA(querytree, Query))
920 : {
921 0 : ereport(WARNING, (errmsg("test_inline_in_from_support_func didn't parse to a Query")));
922 0 : PG_RETURN_POINTER(NULL);
923 : }
924 :
925 12 : PG_RETURN_POINTER(querytree);
926 : }
927 :
928 12 : PG_RETURN_POINTER(NULL);
929 : }
930 :
931 4 : PG_FUNCTION_INFO_V1(test_opclass_options_func);
932 : Datum
933 0 : test_opclass_options_func(PG_FUNCTION_ARGS)
934 : {
935 0 : PG_RETURN_NULL();
936 : }
937 :
938 : /* one-time tests for encoding infrastructure */
939 7 : PG_FUNCTION_INFO_V1(test_enc_setup);
940 : Datum
941 3 : test_enc_setup(PG_FUNCTION_ARGS)
942 : {
943 : /* Test pg_encoding_set_invalid() */
944 129 : for (int i = 0; i < _PG_LAST_ENCODING_; i++)
945 : {
946 : char buf[2],
947 : bigbuf[16];
948 : int len,
949 : mblen,
950 : valid;
951 :
952 126 : if (pg_encoding_max_length(i) == 1)
953 84 : continue;
954 42 : pg_encoding_set_invalid(i, buf);
955 42 : len = strnlen(buf, 2);
956 42 : if (len != 2)
957 0 : elog(WARNING,
958 : "official invalid string for encoding \"%s\" has length %d",
959 : pg_enc2name_tbl[i].name, len);
960 42 : mblen = pg_encoding_mblen(i, buf);
961 42 : if (mblen != 2)
962 0 : elog(WARNING,
963 : "official invalid string for encoding \"%s\" has mblen %d",
964 : pg_enc2name_tbl[i].name, mblen);
965 42 : valid = pg_encoding_verifymbstr(i, buf, len);
966 42 : if (valid != 0)
967 0 : elog(WARNING,
968 : "official invalid string for encoding \"%s\" has valid prefix of length %d",
969 : pg_enc2name_tbl[i].name, valid);
970 42 : valid = pg_encoding_verifymbstr(i, buf, 1);
971 42 : if (valid != 0)
972 0 : elog(WARNING,
973 : "first byte of official invalid string for encoding \"%s\" has valid prefix of length %d",
974 : pg_enc2name_tbl[i].name, valid);
975 42 : memset(bigbuf, ' ', sizeof(bigbuf));
976 42 : bigbuf[0] = buf[0];
977 42 : bigbuf[1] = buf[1];
978 42 : valid = pg_encoding_verifymbstr(i, bigbuf, sizeof(bigbuf));
979 42 : if (valid != 0)
980 0 : elog(WARNING,
981 : "trailing data changed official invalid string for encoding \"%s\" to have valid prefix of length %d",
982 : pg_enc2name_tbl[i].name, valid);
983 : }
984 :
985 3 : PG_RETURN_VOID();
986 : }
987 :
988 : /*
989 : * Call an encoding conversion or verification function.
990 : *
991 : * Arguments:
992 : * string bytea -- string to convert
993 : * src_enc name -- source encoding
994 : * dest_enc name -- destination encoding
995 : * noError bool -- if set, don't ereport() on invalid or untranslatable
996 : * input
997 : *
998 : * Result is a tuple with two attributes:
999 : * int4 -- number of input bytes successfully converted
1000 : * bytea -- converted string
1001 : */
1002 7 : PG_FUNCTION_INFO_V1(test_enc_conversion);
1003 : Datum
1004 4953 : test_enc_conversion(PG_FUNCTION_ARGS)
1005 : {
1006 4953 : bytea *string = PG_GETARG_BYTEA_PP(0);
1007 4953 : char *src_encoding_name = NameStr(*PG_GETARG_NAME(1));
1008 4953 : int src_encoding = pg_char_to_encoding(src_encoding_name);
1009 4953 : char *dest_encoding_name = NameStr(*PG_GETARG_NAME(2));
1010 4953 : int dest_encoding = pg_char_to_encoding(dest_encoding_name);
1011 4953 : bool noError = PG_GETARG_BOOL(3);
1012 : TupleDesc tupdesc;
1013 : char *src;
1014 : char *dst;
1015 : bytea *retval;
1016 : Size srclen;
1017 : Size dstsize;
1018 : Oid proc;
1019 : int convertedbytes;
1020 : int dstlen;
1021 : Datum values[2];
1022 4953 : bool nulls[2] = {0};
1023 : HeapTuple tuple;
1024 :
1025 4953 : if (src_encoding < 0)
1026 0 : ereport(ERROR,
1027 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1028 : errmsg("invalid source encoding name \"%s\"",
1029 : src_encoding_name)));
1030 4953 : if (dest_encoding < 0)
1031 0 : ereport(ERROR,
1032 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1033 : errmsg("invalid destination encoding name \"%s\"",
1034 : dest_encoding_name)));
1035 :
1036 : /* Build a tuple descriptor for our result type */
1037 4953 : if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
1038 0 : elog(ERROR, "return type must be a row type");
1039 4953 : tupdesc = BlessTupleDesc(tupdesc);
1040 :
1041 4953 : srclen = VARSIZE_ANY_EXHDR(string);
1042 4953 : src = VARDATA_ANY(string);
1043 :
1044 4953 : if (src_encoding == dest_encoding)
1045 : {
1046 : /* just check that the source string is valid */
1047 : int oklen;
1048 :
1049 2073 : oklen = pg_encoding_verifymbstr(src_encoding, src, srclen);
1050 :
1051 2073 : if (oklen == srclen)
1052 : {
1053 525 : convertedbytes = oklen;
1054 525 : retval = string;
1055 : }
1056 1548 : else if (!noError)
1057 : {
1058 774 : report_invalid_encoding(src_encoding, src + oklen, srclen - oklen);
1059 : }
1060 : else
1061 : {
1062 : /*
1063 : * build bytea data type structure.
1064 : */
1065 : Assert(oklen < srclen);
1066 774 : convertedbytes = oklen;
1067 774 : retval = (bytea *) palloc(oklen + VARHDRSZ);
1068 774 : SET_VARSIZE(retval, oklen + VARHDRSZ);
1069 774 : memcpy(VARDATA(retval), src, oklen);
1070 : }
1071 : }
1072 : else
1073 : {
1074 2880 : proc = FindDefaultConversionProc(src_encoding, dest_encoding);
1075 2880 : if (!OidIsValid(proc))
1076 0 : ereport(ERROR,
1077 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
1078 : errmsg("default conversion function for encoding \"%s\" to \"%s\" does not exist",
1079 : pg_encoding_to_char(src_encoding),
1080 : pg_encoding_to_char(dest_encoding))));
1081 :
1082 2880 : if (srclen >= (MaxAllocSize / (Size) MAX_CONVERSION_GROWTH))
1083 0 : ereport(ERROR,
1084 : (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
1085 : errmsg("out of memory"),
1086 : errdetail("String of %d bytes is too long for encoding conversion.",
1087 : (int) srclen)));
1088 :
1089 2880 : dstsize = (Size) srclen * MAX_CONVERSION_GROWTH + 1;
1090 2880 : dst = MemoryContextAlloc(CurrentMemoryContext, dstsize);
1091 :
1092 : /* perform conversion */
1093 2880 : convertedbytes = pg_do_encoding_conversion_buf(proc,
1094 : src_encoding,
1095 : dest_encoding,
1096 : (unsigned char *) src, srclen,
1097 : (unsigned char *) dst, dstsize,
1098 : noError);
1099 1701 : dstlen = strlen(dst);
1100 :
1101 : /*
1102 : * build bytea data type structure.
1103 : */
1104 1701 : retval = (bytea *) palloc(dstlen + VARHDRSZ);
1105 1701 : SET_VARSIZE(retval, dstlen + VARHDRSZ);
1106 1701 : memcpy(VARDATA(retval), dst, dstlen);
1107 :
1108 1701 : pfree(dst);
1109 : }
1110 :
1111 3000 : values[0] = Int32GetDatum(convertedbytes);
1112 3000 : values[1] = PointerGetDatum(retval);
1113 3000 : tuple = heap_form_tuple(tupdesc, values, nulls);
1114 :
1115 3000 : PG_RETURN_DATUM(HeapTupleGetDatum(tuple));
1116 : }
1117 :
1118 : /* Convert bytea to text without validation for corruption tests from SQL. */
1119 6 : PG_FUNCTION_INFO_V1(test_bytea_to_text);
1120 : Datum
1121 183 : test_bytea_to_text(PG_FUNCTION_ARGS)
1122 : {
1123 183 : PG_RETURN_TEXT_P(PG_GETARG_BYTEA_PP(0));
1124 : }
1125 :
1126 : /* And the reverse. */
1127 6 : PG_FUNCTION_INFO_V1(test_text_to_bytea);
1128 : Datum
1129 168 : test_text_to_bytea(PG_FUNCTION_ARGS)
1130 : {
1131 168 : PG_RETURN_BYTEA_P(PG_GETARG_TEXT_PP(0));
1132 : }
1133 :
1134 : /* Corruption tests in C. */
1135 6 : PG_FUNCTION_INFO_V1(test_mblen_func);
1136 : Datum
1137 18 : test_mblen_func(PG_FUNCTION_ARGS)
1138 : {
1139 18 : const char *func = text_to_cstring(PG_GETARG_BYTEA_PP(0));
1140 18 : const char *encoding = text_to_cstring(PG_GETARG_BYTEA_PP(1));
1141 18 : text *string = PG_GETARG_BYTEA_PP(2);
1142 18 : int offset = PG_GETARG_INT32(3);
1143 18 : const char *data = VARDATA_ANY(string);
1144 18 : size_t size = VARSIZE_ANY_EXHDR(string);
1145 18 : int result = 0;
1146 :
1147 18 : if (strcmp(func, "pg_mblen_unbounded") == 0)
1148 6 : result = pg_mblen_unbounded(data + offset);
1149 12 : else if (strcmp(func, "pg_mblen_cstr") == 0)
1150 3 : result = pg_mblen_cstr(data + offset);
1151 9 : else if (strcmp(func, "pg_mblen_with_len") == 0)
1152 3 : result = pg_mblen_with_len(data + offset, size - offset);
1153 6 : else if (strcmp(func, "pg_mblen_range") == 0)
1154 3 : result = pg_mblen_range(data + offset, data + size);
1155 3 : else if (strcmp(func, "pg_encoding_mblen") == 0)
1156 3 : result = pg_encoding_mblen(pg_char_to_encoding(encoding), data + offset);
1157 : else
1158 0 : elog(ERROR, "unknown function");
1159 :
1160 9 : PG_RETURN_INT32(result);
1161 : }
1162 :
1163 6 : PG_FUNCTION_INFO_V1(test_text_to_wchars);
1164 : Datum
1165 168 : test_text_to_wchars(PG_FUNCTION_ARGS)
1166 : {
1167 168 : const char *encoding_name = text_to_cstring(PG_GETARG_BYTEA_PP(0));
1168 168 : text *string = PG_GETARG_TEXT_PP(1);
1169 168 : const char *data = VARDATA_ANY(string);
1170 168 : size_t size = VARSIZE_ANY_EXHDR(string);
1171 168 : pg_wchar *wchars = palloc(sizeof(pg_wchar) * (size + 1));
1172 : Datum *datums;
1173 : int wlen;
1174 : int encoding;
1175 :
1176 168 : encoding = pg_char_to_encoding(encoding_name);
1177 168 : if (encoding < 0)
1178 0 : elog(ERROR, "unknown encoding name: %s", encoding_name);
1179 :
1180 168 : if (size > 0)
1181 : {
1182 168 : datums = palloc(sizeof(Datum) * size);
1183 168 : wlen = pg_encoding_mb2wchar_with_len(encoding,
1184 : data,
1185 : wchars,
1186 : size);
1187 : Assert(wlen >= 0);
1188 : Assert(wlen <= size);
1189 : Assert(wchars[wlen] == 0);
1190 :
1191 339 : for (int i = 0; i < wlen; ++i)
1192 171 : datums[i] = UInt32GetDatum(wchars[i]);
1193 : }
1194 : else
1195 : {
1196 0 : datums = NULL;
1197 0 : wlen = 0;
1198 : }
1199 :
1200 168 : PG_RETURN_ARRAYTYPE_P(construct_array_builtin(datums, wlen, INT4OID));
1201 : }
1202 :
1203 6 : PG_FUNCTION_INFO_V1(test_wchars_to_text);
1204 : Datum
1205 168 : test_wchars_to_text(PG_FUNCTION_ARGS)
1206 : {
1207 168 : const char *encoding_name = text_to_cstring(PG_GETARG_BYTEA_PP(0));
1208 168 : ArrayType *array = PG_GETARG_ARRAYTYPE_P(1);
1209 : Datum *datums;
1210 : bool *nulls;
1211 : char *mb;
1212 : text *result;
1213 : int wlen;
1214 : int bytes;
1215 : int encoding;
1216 :
1217 168 : encoding = pg_char_to_encoding(encoding_name);
1218 168 : if (encoding < 0)
1219 0 : elog(ERROR, "unknown encoding name: %s", encoding_name);
1220 :
1221 168 : deconstruct_array_builtin(array, INT4OID, &datums, &nulls, &wlen);
1222 :
1223 168 : if (wlen > 0)
1224 : {
1225 96 : pg_wchar *wchars = palloc(sizeof(pg_wchar) * wlen);
1226 :
1227 267 : for (int i = 0; i < wlen; ++i)
1228 : {
1229 171 : if (nulls[i])
1230 0 : elog(ERROR, "unexpected NULL in array");
1231 171 : wchars[i] = DatumGetInt32(datums[i]);
1232 : }
1233 :
1234 96 : mb = palloc(pg_encoding_max_length(encoding) * wlen + 1);
1235 96 : bytes = pg_encoding_wchar2mb_with_len(encoding, wchars, mb, wlen);
1236 : }
1237 : else
1238 : {
1239 72 : mb = "";
1240 72 : bytes = 0;
1241 : }
1242 :
1243 168 : result = palloc(bytes + VARHDRSZ);
1244 168 : SET_VARSIZE(result, bytes + VARHDRSZ);
1245 168 : memcpy(VARDATA(result), mb, bytes);
1246 :
1247 168 : PG_RETURN_TEXT_P(result);
1248 : }
1249 :
1250 6 : PG_FUNCTION_INFO_V1(test_valid_server_encoding);
1251 : Datum
1252 168 : test_valid_server_encoding(PG_FUNCTION_ARGS)
1253 : {
1254 168 : PG_RETURN_BOOL(pg_valid_server_encoding(text_to_cstring(PG_GETARG_TEXT_PP(0))) >= 0);
1255 : }
1256 :
1257 : /* Provide SQL access to IsBinaryCoercible() */
1258 7 : PG_FUNCTION_INFO_V1(binary_coercible);
1259 : Datum
1260 18930 : binary_coercible(PG_FUNCTION_ARGS)
1261 : {
1262 18930 : Oid srctype = PG_GETARG_OID(0);
1263 18930 : Oid targettype = PG_GETARG_OID(1);
1264 :
1265 18930 : PG_RETURN_BOOL(IsBinaryCoercible(srctype, targettype));
1266 : }
1267 :
1268 : /*
1269 : * Sanity checks for functions in relpath.h
1270 : */
1271 7 : PG_FUNCTION_INFO_V1(test_relpath);
1272 : Datum
1273 3 : test_relpath(PG_FUNCTION_ARGS)
1274 : {
1275 : RelPathStr rpath;
1276 :
1277 : /*
1278 : * Verify that PROCNUMBER_CHARS and MAX_BACKENDS stay in sync.
1279 : * Unfortunately I don't know how to express that in a way suitable for a
1280 : * static assert.
1281 : */
1282 : if ((int) ceil(log10(MAX_BACKENDS)) != PROCNUMBER_CHARS)
1283 : elog(WARNING, "mismatch between MAX_BACKENDS and PROCNUMBER_CHARS");
1284 :
1285 : /* verify that the max-length relpath is generated ok */
1286 3 : rpath = GetRelationPath(OID_MAX, OID_MAX, OID_MAX, MAX_BACKENDS - 1,
1287 : INIT_FORKNUM);
1288 :
1289 3 : if (strlen(rpath.str) != REL_PATH_STR_MAXLEN)
1290 0 : elog(WARNING, "maximum length relpath is if length %zu instead of %zu",
1291 : strlen(rpath.str), REL_PATH_STR_MAXLEN);
1292 :
1293 3 : PG_RETURN_VOID();
1294 : }
1295 :
1296 : /*
1297 : * Simple test to verify NLS support, particularly that the PRI* macros work.
1298 : *
1299 : * A secondary objective is to verify that <inttypes.h>'s values for the
1300 : * PRI* macros match what our snprintf.c code will do. Therefore, we run
1301 : * the ereport() calls even when we know that translation will not happen.
1302 : */
1303 7 : PG_FUNCTION_INFO_V1(test_translation);
1304 : Datum
1305 3 : test_translation(PG_FUNCTION_ARGS)
1306 : {
1307 : #ifdef ENABLE_NLS
1308 : static bool inited = false;
1309 :
1310 : /*
1311 : * Ideally we'd do this bit in a _PG_init() hook. However, it seems best
1312 : * that the Solaris hack only get applied in the nls.sql test, so it
1313 : * doesn't risk affecting other tests that load this module.
1314 : */
1315 3 : if (!inited)
1316 : {
1317 : /*
1318 : * Solaris' built-in gettext is not bright about associating locales
1319 : * with message catalogs that are named after just the language.
1320 : * Apparently the customary workaround is for users to set the
1321 : * LANGUAGE environment variable to provide a mapping. Do so here to
1322 : * ensure that the nls.sql regression test will work.
1323 : */
1324 : #if defined(__sun__)
1325 : setenv("LANGUAGE", "es_ES.UTF-8:es", 1);
1326 : #endif
1327 3 : pg_bindtextdomain(TEXTDOMAIN);
1328 3 : inited = true;
1329 : }
1330 :
1331 : /*
1332 : * If nls.sql failed to select a non-C locale, no translation will happen.
1333 : * Report that so that we can distinguish this outcome from brokenness.
1334 : * (We do this here, not in nls.sql, so as to need only 3 expected files.)
1335 : */
1336 3 : if (strcmp(GetConfigOption("lc_messages", false, false), "C") == 0)
1337 3 : elog(NOTICE, "lc_messages is 'C'");
1338 : #else
1339 : elog(NOTICE, "NLS is not enabled");
1340 : #endif
1341 :
1342 3 : ereport(NOTICE,
1343 : errmsg("translated PRId64 = %" PRId64, (int64) 424242424242));
1344 3 : ereport(NOTICE,
1345 : errmsg("translated PRId32 = %" PRId32, (int32) -1234));
1346 3 : ereport(NOTICE,
1347 : errmsg("translated PRIdMAX = %" PRIdMAX, (intmax_t) -123456789012));
1348 3 : ereport(NOTICE,
1349 : errmsg("translated PRIdPTR = %" PRIdPTR, (intptr_t) -9999));
1350 :
1351 3 : ereport(NOTICE,
1352 : errmsg("translated PRIu64 = %" PRIu64, (uint64) 424242424242));
1353 3 : ereport(NOTICE,
1354 : errmsg("translated PRIu32 = %" PRIu32, (uint32) -1234));
1355 3 : ereport(NOTICE,
1356 : errmsg("translated PRIuMAX = %" PRIuMAX, (uintmax_t) 123456789012));
1357 3 : ereport(NOTICE,
1358 : errmsg("translated PRIuPTR = %" PRIuPTR, (uintptr_t) 9999));
1359 :
1360 3 : ereport(NOTICE,
1361 : errmsg("translated PRIx64 = %" PRIx64, (uint64) 424242424242));
1362 3 : ereport(NOTICE,
1363 : errmsg("translated PRIx32 = %" PRIx32, (uint32) -1234));
1364 3 : ereport(NOTICE,
1365 : errmsg("translated PRIxMAX = %" PRIxMAX, (uintmax_t) 123456789012));
1366 3 : ereport(NOTICE,
1367 : errmsg("translated PRIxPTR = %" PRIxPTR, (uintptr_t) 9999));
1368 :
1369 3 : ereport(NOTICE,
1370 : errmsg("translated PRIX64 = %" PRIX64, (uint64) 424242424242));
1371 3 : ereport(NOTICE,
1372 : errmsg("translated PRIX32 = %" PRIX32, (uint32) -1234));
1373 3 : ereport(NOTICE,
1374 : errmsg("translated PRIXMAX = %" PRIXMAX, (uintmax_t) 123456789012));
1375 3 : ereport(NOTICE,
1376 : errmsg("translated PRIXPTR = %" PRIXPTR, (uintptr_t) 9999));
1377 :
1378 3 : PG_RETURN_VOID();
1379 : }
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